Hydrodynamic retarder with a tangential inflow and outflow principle

Abstract

A hydrodynamic retarder with tangential inflow and outflow is formed with at least one radial recess ( 3 ), in the stator, which extends radially outward when viewed in the radial direction. The at least one radial recess ( 3 ) is arranged so as to enable one of back-feed and back-filling of the oil, emerging through the tangential outlet, into the pressure space.

1 - 6 . (canceled) 
   
   
       7 . A hydrodynamic retarder with tangential inflow and outflow,
 wherein a stator of the hydrodynamic retarder has at least one radial recess ( 3 ) is formed therein, the at least one radial recess ( 3 ), when viewed radially, extends outward in such a manner that in the event of partial filling, either a back-feed or back-filling of oil emerging through a tangential outlet of the retarder, into a pressure space, is possible.   
   
   
       8 . The hydrodynamic retarder with tangential inflow and outflow according to  claim 7 , wherein a degree of back-feeding is at least one of determined and adjusted by virtue of a number and dimensions of the recesses ( 3 ). 
   
   
       9 . The hydrodynamic retarder with tangential inflow and outflow according to  claim 7 , wherein the recesses ( 3 ) are arranged one symmetrically and asymmetrically around a periphery of a blade wheel ( 2 ). 
   
   
       10 . The hydrodynamic retarder with tangential inflow and outflow according to  claim 7 , wherein the recesses ( 3 ) have equal dimensions. 
   
   
       11 . The hydrodynamic retarder with tangential inflow and outflow according to  claim 7 , wherein the recesses ( 3 ) have different dimensions. 
   
   
       12 . The hydrodynamic retarder with tangential inflow and outflow according to  claim 7 , wherein the diameter of the recesses ( 3 ) varies along a length thereof. 
   
   
       13 . A Hydrodynamic retarder with tangential inflow and outflow, the retarder comprising:
 a stator having a plurality of radial recesses ( 3 ) which extend radially outward such that when partially filled, oil flowing through a tangential outlet of the retarder is one of back-fed and back-filled into a pressure space of the retarder, with an amount of the oil being one of back-fed and back-filled into the pressure space being dependent on a quantity and size of the plurality of channels ( 3 ).